3925417 has 4 divisors (see below), whose sum is σ = 3961540. Its totient is φ = 3889296.

The previous prime is 3925403. The next prime is 3925421. The reversal of 3925417 is 7145293.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7145293 = 701 ⋅10193.

It can be written as a sum of positive squares in 2 ways, for example, as 2238016 + 1687401 = 1496^2 + 1299^2 .

It is a cyclic number.

It is not a de Polignac number, because 3925417 - 2¹⁵ = 3892649 is a prime.

It is an Ulam number.

It is a Duffinian number.

3925417 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3925717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17898 + ... + 18115.

It is an arithmetic number, because the mean of its divisors is an integer number (990385).

Almost surely, 2^3925417 is an apocalyptic number.

It is an amenable number.

3925417 is a deficient number, since it is larger than the sum of its proper divisors (36123).

3925417 is a wasteful number, since it uses less digits than its factorization.

3925417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36122.

The product of its digits is 7560, while the sum is 31.

The square root of 3925417 is about 1981.2665141268. The cubic root of 3925417 is about 157.7472994130.

The spelling of 3925417 in words is "three million, nine hundred twenty-five thousand, four hundred seventeen".